Metallic sheet-piling, (driving-point.)



G. W, JACKSON. METALLIC SHEET PILING,(DRIVING PUINT).

APPLICATION FILED SEPT.10,1907.

PATENTED FEB. 4, 1908.

metallic sheet piling consisting of a plurality edges by parts so shaped as to guide a driven 'respect to each other.

UNICEF STATES PATENT OFFIQE.

GEORGE W. JACKSON, OF CHICAGO, ILLINOIS.

METALLIC SHEET-PILING, (DRIVING-POINT.)

This invention relates to improvements in of rolled metal piling sections or units which are adapted to be driven intothe ground edge to edge and have longitudinal interlocking guiding connections at their adjacent section' from a section alreadydriven and which permits connection and disconnection only by relative endwise movement thereof. The s'ections thus constitute, when driven, a continuous wall or structure, the par-ts of which are locked from lateral movement with The present invention relates to a driving point adapted to be attached to the lower ends of the sections to facilitate the driving thereof into the ground.

The invention consists in the matters hereinafter more particularly set forth and pointed out in the appended claims.

In t'he accompanying drawings Figure l is a view in side elevation of the lowerend portion of a piling section, showing my invention applied thereto. Fig. 2 is a view in perspective of the drivingpoint thereof detached from the piling section. Fig. 3 is a vertical section on line 3-3 of Fig. v1. Fig. 4 is a side elevation of the lower end of a piling section showing a modified form of driving point. Fig. 5 is a perspective view of the point shown in Fig; 4.' Fig. 6 is a vertical "section on line 6-6 of Fig. 4. Fig. 7 is a side elevation of the 'lower end of a piling section showing still another form of driving point. Fig. 8 is a perspective view, of the pilin point shown in Fig. 7. Fig. 9 is a vertica section, taken on tline 9-9 of Fig. 7.

As shown in said drawings, (Figs. 1, Zand 3), A A designate a pair'of channel bars of which the umts or sections herein shown are made. They are arranged parallel to each other and with their flanges directed inwardly and separated a distance to receive Specification of Letters Patent.

Application tiled September 10. 1907. Serial No. 392,160.

a mating piling section. Said channel bars are held rigidly together by means of bolts a which extend through the webs of the bars and spacing sleeves 0.1, the web portions of the channel bars being clamped between the heads and nuts of said bolts and the end faces of said sleeves.

B designates a wedge-shaped guiding point or fitting which may be made of cast metal. It comprises two fiat, slanting side members Patented Feb. 4,' 1908.

B1 B2 arranged at an acute angle to each4 other to constitute a lower sharp edge or point and two upper parallel members B2 BZ. Said parts are joined by a transversecon# necting webv B3.

The driving-point is placed in position be ,tween the lower ends of the two channel. bars A A of the piling section, with the flat, exF terior faces of the slanting and parallel members engaging the inner or adjacent faces of the web portions of the two channel bars. From the portions of said channel bars which extend below-the members B2 B2 the flanges are cut away and the webs of the members below the cut away parts of the anges are bent inwardly into 'flat engagement withthe sidefaces of the slantin'g portions B1 B1 of the driving point. Said points are .held in position between. the members by means of rivets b b1. The bottom edges of said web portions of the channel members are beveled and brought together below the bottom'edge of the driving point as indicated by the line b2gin Fig. 3.

In Figs. e, 5 and 6 is shown a driving point C similar to that shown in Figs. l, 2 and 3, except that the parallel portions C1 are longer than the portions ,B2 of the first described construction, and-the outer faces of said parallel portions are recessed to form exterior horizontal Ashoulders c between said parallel portions Cl and the slanting portions C2 of the point. The' driving point C is placed in position between the webs or the channel bar members with the outer faces of its parallel members C1 in engagement with theinner' faces of the web portions of the twochannel bar members and the lower end margins of said channel bar members rest upon the shoulders c. The point is fixed to the members of the section by means of rivets c1.

-In Figs. 7, 8 and 9 is shown a form of driviing oint D generally similar to that shown 1n 1igs. 1, 2 and 3, it comprising upper.

' side portions D2 D2.v The slanting side portions are 4thickened attheir lower edges to form exterior upwardly facing, horizontal shoulders which are engaged with the lower end margins of the two channel bar members.

The oint vis attached to--said channel bar mem ers by rivets d1.

d relieve the holdingrivets cl and d1 from shearing stress duetortheaction of the hammer on thepiling section whrthefatte'r is vbeing driven.

f. The .points B, and` D are made narrower than/'the webs of the channel vbar members s as to provide spaces at the'sides thereof for the interlocking flanges of the adjacent for mating sections-of the piling, which latter may-be made of I-beam form, as shown in my prior United States Letters PatentNo. 685,447, dated otober 29th, i901. f Y

,The driving point described facilitates .the

driving of they sections into the earth and avoids. tendency of the side members of the sectionl bending or springing outwardly in case the section being driven strikes an obstruction, such as a stone. Saiddriving point may be applied to other forms of piling sections, and possesses special futility in its application toa two-part section such as herein shown.

l'claim as invention A1. vThe combination with a metal sheet piling sectionv comprising two side members secured rigidly together and provided with marginal inwardly' directed iianges, of a tapered driving point fitting between and iixedly attached to the lower' ends of said members, lsaid driving point beingl narrower l The shoulders c and than the side members and the flanges ofthe side members'being cut away a distance above the lower end of said driving, }')`o'int. y

2. The combination with a .metal sheet piling section. comprising'twofsiide members secured rigidly together, of a tapered driving point -Y fitting between said'members, said side mcmbersof the sectionfitting outside the tapered portions of/'the point and means for fixedly attaching the point to said members.

3. The combination with a metal sheet pil/ing section comprising two lside members secured rigidly together, of a tapered driving point fitting between said members, said side members of the section fitting outside the tapered portions of the point, and. means for fixedly attaching the point to said mem-- my invention I affix -my signature in'the presence of witnesses, this 5th day of September A. D. 1907. l

GEORGE w. ,JAeKsoN.

Witnesses:

MANLEY W. CLUXToN, HOWARD SANsooIK, BEN. F. KIMMIT, THOMAS C. JAoKsoN. 

